elasticsearch/docs/reference/esql/functions/floor.asciidoc

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[[esql-floor]]
=== `FLOOR`
Round a number down to the nearest integer.
[source.merge.styled,esql]
----
include::{esql-specs}/math.csv-spec[tag=floor]
----
[%header.monospaced.styled,format=dsv,separator=|]
|===
include::{esql-specs}/math.csv-spec[tag=floor-result]
|===
NOTE: This is a noop for `long` and `integer`. For `double` this picks the
the closest `double` value to the integer ala
{javadoc}/java.base/java/lang/Math.html#floor(double)[Math.floor].